Does your store have rooms in the back for animals that come in sick? I know in our pet store we had racks in the back. Animals did come in sick or were stressed from being shipped in but we would isolate them in the back to make sure to provide individual care to the animal. If the big stores do not have them then the employees have no choice but to leave the ones that come in unhealthy out for everyone to see.
Yeah, we have a room called the "quiet room". Its in the back of the store, controlled temp of 74 degrees, and has thick doors so theirs no noise that comes through. All petsmart/petco's have them, not sure about smaller stores of course, .